022 International Standard Serial Number

Field definition and scope:

Field 022 contains the valid International Standard Serial Number (ISSN) and/or any incorrect and canceled ISSNs copied from field 022 of a MARC bibliographic record for a continuing resource.

The inclusion of this field in the established heading record for a series which identifies an occasionally-analyzed issue of a continuing resource provides a machine link within a system between the authority record for the series and a bibliographic record in which the heading is used as a series added entry. The subfields for this field are defined for consistency with field 022 in MARC 21 Format for Bibliographic Data.

An International Standard Book Number (ISBN) associated with a multipart item that is cataloged as a set is contained in field 020 (International Standard Book Number).

The National level record requirement for this field is Mandatory if applicable.

Field 022 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National level (NLR) record requirements, and designator repeatability, see table below:

Position	Description	NLR	Repeatability
Field 022	International Standard Serial Number	A	R
Indicator:
First	Undefined; contains a blank	M
Second	Undefined; contains a blank	M

Subfield code:
$a	International Standard Serial Number	A	NR
$l	ISSN-L	A	NR
$m	Canceled ISSN-L	A	R
$y	Incorrect ISSN	A	R
$z	Canceled ISSN	A	R
$0	Authority record control number or standard number		NR
$1	Real World Object URI		R
$6	Linkage	A	NR
$8	Field link and sequence number	O	R

Input conventions:

ISSN structure

Display constants

Content designator history:

Subfield $l - ISSN-L [new, 2007]

Subfield $m - Canceled ISSN-L [new, 2007]

Subfield $0 - Authority record control number or standard number [new, 2021]

Subfield $1 - Real World Object URI [new, 2021]

LC Guidelines:

022 International Standard Serial Number

DCM Z1 Instructions:

022 International Standard Serial Number